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Presentation

Towards an Automated Workflow for Link-level Exploration and Optimization in the Domain of All-to-All Optical Networks
TimeTuesday, July 12th5pm - 6pm PDT
LocationLevel 2 Exhibit Hall
Event Type
Engineering Track Poster
Engineering Tracks
Topics
AI
Back-End Design
Cloud
Embedded Systems
Front-End Design
IP
DescriptionFor those applications that require a tight latency profile, such as machine learning, an All-to-All (A2A) optical network using silicon photonics devices and optical fibers is desired. Our A2A optical network enables that any compute node (CPU/GPU) in the network communicates to any other node via optical direct and optical pass-through links. In order to understand whether or not a link is feasible and/or satisfies target specifications, photonics engineers need tools that are capable of supporting design exploration and optimization. In this scenario, insertion loss and Bit-Error-Rate (BER) are important figures of merit that need to be estimated, and if possible, further improved. The current design process for these optical links require a lot of expertise from the photonic circuit designer, and even for an experienced designer the design process is a complex one requiring manual tweaking and a lot of trial and errors, making it time consuming and error-prone. In this work, we propose a fast and automated workflow which involves for the first time, Ansys Lumerical INTERCONNECT and optiSLang for link-level exploration and optimization. As a proof of concept, an optical link carrying 4 wavelengths is analyzed and some of its design parameters are explored and optimized.